<?xml version="1.0" encoding="utf-8"?>
<selector  xmlns:android="http://schemas.android.com/apk/res/android">  
    <item android:drawable="@drawable/check_true" android:state_checked="true"></item>  
    <item android:drawable="@drawable/check_true" android:state_selected="true"></item>  
    <item android:drawable="@drawable/check_true" android:state_pressed="true"></item>  
    <item android:drawable="@drawable/check_false"></item>  
</selector>  
